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All Journal Jurnal Fisika Unand JOURNAL ONLINE OF PHYSICS Riau Journal of Empowerment Indonesian Journal of Chemical Analysis (IJCA) Jurnal Bio-Geo Material Dan Energi Jurnal Riset Fisika Indonesia Dedikasi: Jurnal Pengabdian Kepada Masyarakat Jurnal Pengabdian Masyarakat (JPM) Pinang Masak JPFT (Jurnal Pendidikan Fisika Tadulako Online)
Frastica Deswardani
Program Studi Fisika, Universitas Jambi
Religion Agriculture, Biological Sciences & Forestry Humanities Astronomy Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Languange, Linguistic, Communication & Media Library & Information Science Materials Science & Nanotechnology Mathematics Physics Social Sciences Other

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Pembuatan dan Karakterisasi Scaffold Hidroksiapatit (HAp) dari Limbah Tulang Ikan Tenggiri (Scomberomorus commerson) Rohania, Meisa; Deswardani, Frastica; Fendriani, Yoza; Anjelina, Ria; Anggraini, Rista Mutia; Maulana, Lucky Zaehir; Pujaningsih, Febri Berthalita
Jurnal Riset Fisika Indonesia Vol 5 No 2 (2025): Juni
Publisher : Jurusan Fisika, Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jrfi.v5i2.6410

Abstract

Defects in bone tissue represent a significant health concern and continue to pose challenges in clinical surgery. The fabrication of scaffolds from hydroxyapatite (HAp) can support bone regeneration. However, producing HAp scaffolds with ideal pore structures for effective bone tissue engineering remains difficult. In recent decades, many studies have attempted to enhance HAp scaffolds by incorporating polymeric materials to address their limitations. In this study, corn starch was used as a pore-forming agent, and polyvinyl alcohol (PVA) served as a binder and pore size regulator. The scaffolds were fabricated using the freeze-drying method, which offers the advantage of forming porous structures while maintaining scaffold integrity. This study investigated the effects of varying PVA additions which 3 wt%, 7 wt%, and 10 wt%. XRD analysis showed that the diffraction peaks of all samples corresponded to the HAp phase, displayed β-TCP peaks, and a crystal size with values ranging from 0.96 nm to 11.77 nm.  SEM analysis showed that the HAp-7 scaffold has the largest pore size distribution range of about 1.19 µm to 11.77 µm.
ANALISIS VARIASI KONSENTRASI EKSTRAK DAUN PANDAN (Pandanus amaryllifolius) PADA GREEN SYNTHESIS NANOPARTIKEL MAGNETIT (Fe3O4) BERBASIS PASIR BESI (IRON SANDS) SUNGAI BATANG HARI Berliana, Aulia Putri; Deswardani, Frastica; Pujaningsih, Febri Berthalita; Anggraini, Rista Mutia; Maulana, Lucky Zaehir
JOURNAL ONLINE OF PHYSICS Vol. 10 No. 3 (2025): JOP (Journal Online of Physics) Vol 10 No 3
Publisher : Prodi Fisika FST UNJA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/jop.v10i3.46458

Abstract

Telah dilakukan penelitian tetang green synthesis nanopartikel berbasis pasir besi Sungai Batanghari dengan variasi konsentrasi ekstrak daun pandan (Pandanus Amaryllifolius). Penelitian ini bertujuan untuk mengetahui pengaruh dari variasi konsentrsi ekstrak daun pandan terhadap nanopartikel Fe3O4. Uji karakterisasi yang lakukan adalah uji XRD dan uji UV-Vis. Hasil analisis  uji XRD menunjukan bahwa pola difraksi 2θ yang terletak pada sampel berturut-turut Fe3O4 , NP1, NP2, NP3, yaitu pada  35,51˚; 35,41˚; 35,49˚; dan 35,53˚ dengan bidang kristal (311). Ukuran kristal berturut-turut 13,83 nm; 26,80 nm; 13,86 nm; dan 25,30 nm. Hal ini menunjukan bahwa pada sampel NP1 dan sampel NP2 memiliki ukuran kristal lebih besar dibandingkan dengan sampel NP2. Nilai dari sampel NP2 hampir sama dengan ukuran kristal dari Fe3O4 tanpa tambahan ekstrak. Berdasarkan uji karakterisasi UV-Vis nanopartikel Fe3O4 menunjukan energy gap (Eg) yang elalui metode touc plot. Dengan nilai direct badgap berturut-turut 4,2 eV;  4,8 eV; dan 4,4 eV untuk sampel Fe3O4 , NP1, NP3 . Nilai indirect bandgap berturut-turut 3,9 eV; 4,1 eV; dan 3.7 eV untuk sampel Fe3O4 , NP1, NP3.
PENGARUH PENGGUNAAN DYE TUNGGAL DAN DYE CAMPURAN ANTOSIANIN-KLOROFIL TERHADAP EFISIENSI KERJA DYE SENSITIZED SOLAR CELL (DSSC) Manurung, Diana Novita; Nurhidayah; Deswardani, Frastica
JPFT (Jurnal Pendidikan Fisika Tadulako Online) Vol. 9 No. 1 (2021): JPFT (Jurnal Pendidikan Fisika Tadulako Online)
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/jpft.v9i1.827

Abstract

Research on the performance of Dye Sensitized Solar Cell (DSSC) using single dye, mixture of anthocyanin and chlorophyll has been done. The purpose of this study was to identification influence the type of dye to the working efficiency of DSSC. This research included in experimental research. The working electrode of DSSC was made of dyes from dragon fruit, red spinach, pandanus leaves, cassava leaves and made of TiO2 semiconductor that superimposed with doctor blade method on FTO glass. While the counter electrode was made of 2B pencil carbon-soot a candle flame. Measurements absorbance of each type of dye using spectrophotometer UV-Vis to determine the absorbance values of each type of dye, the highest absorbance at dye mixture from dragon fruit- pandanus leaves. Measurement of currents and voltages using a multimeter with a light source of the sun to determine the efficiency of DSSC, the best efficiency values obtained in DSSC that used dye mixture from dragon fruit-pandanus leaves is equel to 0,002829091% and red spinach-cassava leaves is equel to 0,002222504%. The usage of dye mixture can improve efficiency of DSSC.
SINTESIS DAN KARAKTERISASI NANOPARTIKEL MAGNETIT (FE3O4) DARI PASIR BESI SUNGAI BATANGHARI, JAMBI YANG DI ENKAPSULASI DENGAN SILIKA Sinurat, Menita; Gusti, Diah Riski; Deswardani, Frastica; Safitri, Safitri; Sudibyo, Sudibyo
JPFT (Jurnal Pendidikan Fisika Tadulako Online) Vol. 9 No. 1 (2021): JPFT (Jurnal Pendidikan Fisika Tadulako Online)
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/jpft.v9i1.962

Abstract

This research aimed to produce magnetites from the residue of iron sand extract solution in HCl and the effect of silica encapsulation on the magnetite used XRD, SEM and FTIR characterization tools. The crystal size tended to increase in the magnetite encapsulated by silica (K (6%), L (9%), N (24%) and O (36%), because the perfect condensation and hydrolysis of the encapsulation material, while the M sample (12%) decreased the crystal size of 17.41 nm because the hydrolysis and condensation of the sample did not occur completely. The crystals in magnetite before and after being encapsulated with silica did not change. The transmittance of the typical functional groups of magnetite (Fe-O) and the typical functional groups of silica (Si-O-Si) tends to decrease after encapsulation with silica which caused the infrared absorbance of the molecules to increase high so that the presence of magnetite and silica is higher in the silica encapsulated sample The effect of variations in silica concentration on SEM characterization results is reduced agglomeration, particles that coincide and stick to the sample as the silica concentration increased with the smallest particle size found in the M sample (12%), namely the range of 10-50 nm. The residue of the iron sand extract solution with HCl can form nanomagnetites with an average particle size range below 100 nm.
Co-Authors Adona Sahurni Afrianto, M. F Afrianto, Muhammad Ficky Afrianto, Muhhamad Ficky Anak Agung Istri Sri Wiadnyani Anggraini, Rista Mutia Anjelina, Ria Berliana, Aulia Putri Crismeli Crismeli Damris Muhammad Debby Mustika Rani Diah Riski Gusti Diana Novita Manurung Elvaswer Elvaswer Febri Berthalita Pujaningsih fitri, Oktaviani Elsa Helga Dwi helga dwi fahyuan Helga Dwi Fahyuan Heriyanti Iful Amri Jesi Pebralia Lucky Zaehir Maulana Manurung, Diana Novita Mardian Peslinof Menita Sinurat Mutia Hasmi Pradila Mz, Nasri Nelson Nelson Nelson Nur Azizah Nurhidayah Nurhidayah Nurhidayah Nurhidayah Nurhidayah Nurhidayah Nurhidayah Nurhidayah Pebralia, Jesi Poni Dwi Manda Puspita, Vela Ratih Dyah Puspitasari Restina Bemis Rista Mutia Anggraini Rista Mutia Anggraini Rista Mutia Anggraini Rodearni Ananda Putri Purba Roedearni Ananda Putri Purba Rohania, Meisa Rustan Safitri Safitri Safitri Safitri Selamat, N. Shazleen Nadia Sinurat, Menita Sudibyo Sudibyo Sudibyo Sudibyo Syamsul Arifin Tika Restianingsih Yoza Fendriani